STM32-Temperature-Sensor

Temperature sensor with display

Devices

• STM32F103C8T6
• Led Display 1602a
• Remote 8-bit I/O expander for I2C-bus with interrupt (Serial I2C LCD Display Adapter) PCF8574 or similiar
• Digital Humidity and Temperature Sensor DHT22 (AM2302)
• Noname button
• Breadboard
• 2 resistors 5-10k Ohms
• Resistor ~1k Ohms

Connection

• 5V and Ground pins connected to Breadboard/DHT22/I2C LCD adapter
• 5V pin connected to Button's pin
• PA0 pin connected to another Button's pin from the same side
• PB6/PB7 (I2C SCL/SDA) pins connected to the corresponding I2C LCD adapter pins
• PC14 connected to DHT22 Data pin (2nd pin)
• 10k Ohms resistors connects SCL/SDA pins with 5V
• 1k Ohms resistor connects DHT22 Data pin with 5V